When you start Photoshop, the Tools palette appears at the left of the screen. Some tools in the Tools palette have options that appear in the context-sensitive options bar. These include the tools that let you use type, select, paint, draw, sample, edit, move, annotate, and view images. Other tools allow you to change foreground/background colors, go to Adobe Online, and work in different modes.
You can expand some tools to show hidden tools beneath them. A small triangle at the lower right of the tool icon signals the presence of hidden tools.
You can view information about any tool by positioning the pointer over it. The name of the tool appears in a tool tip below the pointer. Some tool tips contain links leading to additional information about the tool.